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OpenStudy (anonymous):

If y = 5x – 3, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs? (5 points) {(2, 5), (–3, –12), (–4, –18)} {(–1, –8), (0, –3), (3, 12)} {(1, 4), (7, 25), (3, 10)} {(5, 20), (6, 12), (1, 9)}

OpenStudy (anonymous):

@dtan5457

OpenStudy (anonymous):

@Starr_DynastyT

OpenStudy (anonymous):

@Dedi @TheSmartOne @StudyGuidance

OpenStudy (anonymous):

@dan815

OpenStudy (anonymous):

plz help

OpenStudy (anonymous):

C

OpenStudy (anonymous):

and this should be in math

OpenStudy (anonymous):

ok thanks and im sorry

OpenStudy (anonymous):

can i post my questions and ou tell me if there right ?

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Which of the sets of ordered pairs represents a function? A = {(2, –2), (5, –5), (–2, 2), (–5, 5)} B= {(4, 2), (4, –2), (9, 3), (9, –3)} (5 points) Only A Only B Both A and B Neither A nor B 2. Which of the tables represents a function? Table AInput Output 5 3 5 2 4 1 Table BInput Output 1 2 3 2 5 3 Table CInput Output 0 0 1 2 1 3 Table DInput Output 4 2 4 3 4 4 (5 points) Table A Table B Table C Table D 3. If y = 5x – 3, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs? (5 points) {(2, 5), (–3, –12), (–4, –18)} {(–1, –8), (0, –3), (3, 12)} {(1, 4), (7, 25), (3, 10)} {(5, 20), (6, 12), (1, 9)} 4. The graph represents function 1 and the equation represents function 2: Function 2 y = 4x + 1 How much more is the rate of change of function 2 than the rate of change of function 1? (5 points) 1 2 3 4 5. Dan and Barney are members of different video game libraries. Dan pays a membership fee of $35, and he pays $4 for every video game he rents. The following function shows the total amount of money, y, in dollars, that Barney pays for renting x number of video games: y = 3x + 30. How many more dollars does Dan pay for a membership fee than Barney? (5 points) $1 $5 $26 $32 6. Sandra and Jenny spend a certain amount of money from their money box each month to buy plants. The table shows the relationship between the amount of money (y) remaining in Sandra's money box and the number of months (x): Number of Months (x) Amount Remaining (dollars) (y) 1 50 2 45 3 40 4 35 The equation shows the relationship between the amount of money, y, remaining in Jenny's money box and the number of months, x: Function 2: y = –6x + 50 Which statement explains which function shows a greater rate of change? (5 points) Function 2 shows a greater rate of change because Jenny spends $6 each month and Sandra spends $5 each month. Function 2 shows a greater rate of change because Jenny spends $50 each month and Sandra spends $15 each month. Function 1 shows a greater rate of change because Sandra spends $15 each month and Jenny spends $44 each month. Function 1 shows a greater rate of change because Sandra spends $5 each month and Jenny spends –$6 each month. 7. Which equation represents a linear function? Equation 1: y3 = 2x + 1 Equation 2: y = 3x + 1 Equation 3: y = 5x2 – 1 Equation 4: y = 4x4 – 1 (5 points) Equation 1 Equation 2 Equation 3 Equation 4 8. Which of the following is the graph of a linear function? (5 points) 9. The following table shows the values of y for different values of x: x y 0 0 1 1 2 4 Which statement best explains whether the table represents a linear function or a nonlinear function? (5 points) It represents a linear function because its points are on a straight line. It represents a nonlinear function because its points are not on a straight line. It represents a linear function because its points are not on a straight line. It represents a nonlinear function because its points are on a straight line. 10. The graph shows y as a function of x: In which segment is the function decreasing? (5 points) A B C D 11. Which of the following options best describes the function graphed below? (5 points) Nonlinear increasing Linear constant Nonlinear decreasing Linear increasing 12. The graph shows the distance Kim traveled from the mall in miles (y) as a function of time in seconds (x). The graph is divided into four segments labeled P, Q, R, and S, respectively. Which segment shows Kim waiting for a cab? (5 points) P Q R S

OpenStudy (anonymous):

wow

OpenStudy (anonymous):

actually nvm i have 2 more can u help me

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

look at number 9

OpenStudy (anonymous):

i chose c is that correct ?

OpenStudy (anonymous):

i meant i chose b

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

Which of the following options best describes the function graphed below? (5 points) Nonlinear increasing Linear constant Nonlinear decreasing Linear increasing

OpenStudy (anonymous):

i chose linear constant the line is completly straight with no curves or bumps

OpenStudy (anonymous):

is that correct

OpenStudy (anonymous):

i got a 66 % u told me the wrong answr to one

OpenStudy (anonymous):

what is the graph look like

OpenStudy (anonymous):

and sorry

OpenStudy (anonymous):

its ok

OpenStudy (anonymous):

what dose the graph look like

OpenStudy (anonymous):

i have 4 more can u help

OpenStudy (anonymous):

i already finished the others

OpenStudy (anonymous):

A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 8 inches. Part A: Write a list of 6 ordered pairs to show the height of the candle in inches (y) as a function of time in hours (x) from the first hour after it started burning. For example, the point (0, 8) would represent a height of 8 inches after 0 hours. Explain how you obtained the ordered pairs. (5 points) Part B: Is this relation a function? Justify your answer using the list of ordered pairs you created in Part A. (2 points) Part C: If the rate at which the candle burned was 0.4 inches per hour instead of 0.5 inches per hour, would the relation be a function? Explain your answer using input and output values.

OpenStudy (anonymous):

oh

OpenStudy (anonymous):

so your done

OpenStudy (anonymous):

my qeustion is above

OpenStudy (anonymous):

??hello

OpenStudy (anonymous):

hold on

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

yeah I cant do this one

OpenStudy (anonymous):

ok

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